uzor 1.0.20

Core UI engine — geometry, interaction, input state
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175

//! Internationalization (i18n) module
//!
//! Simple, zero-dependency localization system using compile-time checked keys.
//!
//! # Design
//!
//! - All text keys are typed enums (compile-time safety)
//! - Translations are static strings (no heap allocation)
//! - Language can be switched at runtime with zero cost
//! - English is the default/fallback language
//!
//! # Usage
//!
//! ```ignore
//! use uzor::i18n::{Language, t, TextKey};
//!
//! // Get translation for current global language
//! let text = t(TextKey::Delete);
//!
//! // Or get for specific language
//! let text_ru = TextKey::Delete.get(Language::Ru);
//! ```
//!
//! # Adding New Languages
//!
//! 1. Add variant to `Language` enum
//! 2. Add match arm in each key's `get()` implementation
//! 3. Add translations for all keys

mod keys;
mod translations;

pub use keys::{TextKey, MonthKey, TooltipKey, month_names_short};
pub use translations::Translatable;

use std::sync::atomic::{AtomicU8, Ordering};

/// Supported languages
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
#[repr(u8)]
pub enum Language {
    /// English (default)
    #[default]
    En = 0,
    /// Russian
    Ru = 1,
}

impl Language {
    /// Get language from u8 value
    pub fn from_u8(v: u8) -> Self {
        match v {
            1 => Language::Ru,
            _ => Language::En,
        }
    }

    /// Get language code (ISO 639-1)
    pub fn code(&self) -> &'static str {
        match self {
            Language::En => "en",
            Language::Ru => "ru",
        }
    }

    /// Get language name in English
    pub fn name(&self) -> &'static str {
        match self {
            Language::En => "English",
            Language::Ru => "Russian",
        }
    }

    /// Get language name in native language
    pub fn native_name(&self) -> &'static str {
        match self {
            Language::En => "English",
            Language::Ru => "Русский",
        }
    }

    /// Get all available languages
    pub fn all() -> &'static [Language] {
        &[Language::En, Language::Ru]
    }
}

// Global language setting (atomic for thread safety)
static CURRENT_LANGUAGE: AtomicU8 = AtomicU8::new(0);

/// Get current global language
#[inline]
pub fn current_language() -> Language {
    Language::from_u8(CURRENT_LANGUAGE.load(Ordering::Relaxed))
}

/// Set global language
#[inline]
pub fn set_language(lang: Language) {
    CURRENT_LANGUAGE.store(lang as u8, Ordering::Relaxed);
}

/// Translate a text key using current global language
#[inline]
pub fn t(key: TextKey) -> &'static str {
    key.get(current_language())
}

/// Translate a tooltip key using current global language
#[inline]
pub fn t_tooltip(key: TooltipKey) -> &'static str {
    key.get(current_language())
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_language_default() {
        assert_eq!(Language::default(), Language::En);
    }

    #[test]
    fn test_language_codes() {
        assert_eq!(Language::En.code(), "en");
        assert_eq!(Language::Ru.code(), "ru");
    }

    #[test]
    fn test_language_names() {
        assert_eq!(Language::En.name(), "English");
        assert_eq!(Language::Ru.name(), "Russian");
        assert_eq!(Language::Ru.native_name(), "Русский");
    }

    #[test]
    fn test_global_language() {
        // Save current
        let prev = current_language();

        set_language(Language::Ru);
        assert_eq!(current_language(), Language::Ru);

        set_language(Language::En);
        assert_eq!(current_language(), Language::En);

        // Restore
        set_language(prev);
    }

    #[test]
    fn test_translation() {
        set_language(Language::En);
        assert_eq!(t(TextKey::Delete), "Delete");

        set_language(Language::Ru);
        assert_eq!(t(TextKey::Delete), "Удалить");

        // Reset to default
        set_language(Language::En);
    }

    #[test]
    fn test_tooltip_translation() {
        set_language(Language::En);
        assert_eq!(t_tooltip(TooltipKey::CloseWindow), "Close window");

        set_language(Language::Ru);
        assert_eq!(t_tooltip(TooltipKey::CloseWindow), "Закрыть окно");

        // Reset to default
        set_language(Language::En);
    }
}